In what ratio, sugar costing Rs 60 per kg be mixed with sugar costing Rs 42 per kg such that by selling the mixture at Rs 56 per kg there is a gain of 12% ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 ie 4 : 5
x + (12x/100) = 56
x = 50
Hence, 4 : 5